HONG KONG : Al-Hilal's Aleksandar Mitrovic got a hat-trick as they continued their perfect start to the Asian Champions League Elite on Monday with a 3-0 win over Iran's Esteghlal, although the Saudi side's evening was soured by a late injury to Neymar. Al-Ahli's Roberto Firmino and Riyad Mahrez ensured it was a positive evening for Saudi Pro League sides in the recently revamped continental competition with both netting twice in a 5-1 thrashing of Iraq's Al-Shorta in Jeddah. Iran's Persepolis